This patch fixes the quantization range for YCbCr output on
Lspcon based devices.
v2: Re-phrased the description and added Ville's Rb.
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_lspcon.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
index f98891f058da..7cb65e0f241e 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
@@ -523,12 +523,17 @@ void lspcon_set_infoframes(struct intel_encoder *encoder,
else
frame.avi.colorspace = HDMI_COLORSPACE_RGB;
- drm_hdmi_avi_infoframe_quant_range(&frame.avi,
- conn_state->connector,
- adjusted_mode,
- crtc_state->limited_color_range ?
- HDMI_QUANTIZATION_RANGE_LIMITED :
- HDMI_QUANTIZATION_RANGE_FULL);
+ if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_RGB) {
+ drm_hdmi_avi_infoframe_quant_range(&frame.avi,
+ conn_state->connector,
+ adjusted_mode,
+ crtc_state->limited_color_range ?
+ HDMI_QUANTIZATION_RANGE_LIMITED :
+ HDMI_QUANTIZATION_RANGE_FULL);
+ } else {
+ frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+ frame.avi.ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+ }
ret = hdmi_infoframe_pack(&frame, buf, sizeof(buf));
if (ret < 0) {
--
2.26.2
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